Sometimes they do not have the parts but you can add it to the wishlist and then they notify when it's back in stock. I had a look at my front wheel full front hub and priced at 101 dollars. (almost always shipped from UAE.
The very best of luck with the conversion. Be interesting to see. Have you had a chance to gauge how much...roughly/// the build with cost you between parts and labour minus what you may receive for selling your old parts?
did they say it was the same code as before? There is an air/fuel sensor upstream of the o2 sensor. I had the same code p113A before but has been fine since i replaced it.